Improvement in harrows



NV PETERS. PHOTO-LITHOGRAPHER, WASH! vskilled in the art to make and use ditemi mes @anni (twine.

Letters Patfmt'No. 90,980, dated June 8, 1869.

IMPROVEMENT IN HARROWS.

Hwy-

The Schedule referred to in these Letters 'Patent and making part of the saine.

To all whom it 'may concern:

Be it known that I, A. W. BALL, of Delaware Grove, in the county of Mercer, and State of Pennsylvania, haveA invented a new and improved Harrow;A rnd I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others the same, reference being had to the accompanying drawings', forming part o this specication.

' This invention relates to a new and improved harrow, and it consists ina novel construction of the same, as hereinafter vfully shown and described, whereby several advantagesare obtained, as hereinafter set forth.

In the accompanying sheet of drawings- Figure 1 is a plan or top view of my invention constructed of wood.

FigureA 2, a rear view of the same.

Figure 3, a plan or top view of' my invention constructed of metal.

Figu're 4, a plan or top view of a portion of a harrow, showing a modiiication of my invention.

Similar letters of reference indicate corresponding parts. l

My improved barrow is constructed of two equal parts, A A, (see figs. 1 and 2,) connected by joints to a central rod, B.

Each part, A,.,is,coinposed of three bars, a b e, the bars a b being/parallel with each other, and connected at their rear ends to the bar c.

The bars a b are connected bya cross-bar, cl.

The bars a b have sockets e attached to them by boltsj, and in these sockets the barrow-teeth y are tted.

The inner ends of the bars l) c are provided with eyes 71., through which the rod B passes.

By this arrangement each part, A, ofthe harrow is allowed to rise and fall freely, and conform` to the inequalities ofthe surface of the ground over which Ithey may pass.

The invention is not confined to the use' of wood as a material. v

In tig. 2 an iron-frame barrow is shown, constructed substantially in the same way.

The bars al) may, in this case,`be madeout of rone piece, butin proper form, or they may be made of separate pieces.

The sockets e may be of wrought or cast-iron attached by bolts as shown in iig. 2,4 or they may be made out of a wrought-iron bar, h', bent or swaged to i'orm the sockets, as shown in fig. 4, said bar, h', being secured by bolts to the bar a or l).

'lhis harrow is extremely simple in construction, and may be manufactured at a very moderate cost, either of wood or iron.

I prefer the iron harrow, able, not liable to choke or clog, and it is a better or m'ore efficient pulverizer.

I do not confine myself to any precise position of the l inner bars b, for they may be placed parallel. with the bars a., as shown i-ny iig. 2, and bolted to the bars a c. rlhe team is attached to the front end of' the -central rod B. v l

Having thus described my invention,

What I claim as new, ters Patent, is-

The metallic harrow, constructed as described, of two parts, A A, each coinposedof bars, a c, strengthened by the brace b, and hinged to the central bar B, in such a manner' as to operate independently of each other, the bars a b being provided with the metallic sockets e, for the teeth g, all arranged as described for the purpose specified.

A. W. BALL.

Witnesses:

PETER HALL, WM. MCKAY.

however, as it is more duri" and desire to secure by Let- 

